Home / 198,569.28-297,890.85-80,323.65

Finding the Fourth Proportional to 198,569.28, 297,890.85 and 80,323.65

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Solution

The fourth proportional to 198,569.28, 297,890.85 and 80,323.65 is: 120,500.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,569.28 : 297,890.85 = 80,323.65 : x
  2. Step 2: Convert to fraction form
    198,569.28/297,890.85 = 80,323.65/x
  3. Step 3: Cross multiply
    198,569.28x = 297,890.85 × 80,323.65
  4. Step 4: Simplify right side
    198,569.28x = 23,927,680,373.60
  5. Step 5: Solve for x
    x = 23,927,680,373.60/198,569.28
  6. Step 6: Final answer
    x = 120,500.41

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.